it worked a charm for me. are you using it correctly?
the idea is to flash your mod chip with tsop_d6.bin, boot your xbox, and the front light will sit there flashing orange, you then disconnect the d0 line, and it boots up like usual. now flash the tsop and your all done. the only problem is that its then a barstard to get the tsop_d6 bios OFF the mod chip and replace it with D6 or whatever.
please DONT try and flash your tsop with it! it WILL NOT WORK!